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That seems likely. I've changed a few things recently:
1) Added a flip-flat - have imaged since using this, but only in narrowband
2) Collimated my focuser
3) Refocused my OAG
4) Started on a new target, pointing to a different area of the sky
5) Put all my gear in a dome - have imaged since using this, but only in narrowband
I'm suspecting this might be the flip-flat reflecting some LEDs. I have two LEDs on circuit boards on my focuser, one on the laptop and one on a power source.
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